Hebrew Subtitles zdmc 17.1 external player zidoo X8

I use zdmc and zidoo built-in Media Center, play video Via PC(NFS) with external player.
The subtitles appear in Hebrew but, Question(?) or reading(!) marks or a dot(.) Appears at the beginning of the subtitles.
The Hebrew language it's from right to left.
It only happens with external player.
What should I change?